SICILY, Akragas. Circa 450-440 BC. AR Pentonkion (7.5mm, 0.31 g). Crab; five(?) pellets (mark of value) below / Five pellets (mark of value). Unpublished in the standard references. Toned. Near EF. Apparently unique.
From the J. de Wilde Collection. Ex Numismatica Ars Classica 72 (16 May 2013), lot 842.
This issue was, surprisingly, missed by Westermark in her recent die study of the early coinage of Akragas.